Sustainable fabrication of 2D-based devices through reuse of substrates with microfabricated electrodes

• Ying Zhang,
• Yigit Sozen,
• Esteban Zamora-Amo,
• Thomas Pucher,
• Nuria Jiménez-Arévalo,
• Zdenek Sofer,
• Yong Xie and
• Andres Castellanos-Gomez

Beilstein J. Nanotechnol. 2026, 17, 818–827, doi:10.3762/bjnano.17.58

• signatures of the transferred 2D material, retain a largely homogeneous surface-potential distribution, and preserve comparable electrical performance after reuse. By extending the lifetime of pre-patterned chips, this approach can reduce substrate consumption and lower the cost of 2D device prototyping

• the substrate surface, allowing for their application in reusable biosensors [21]. A different approach to reuse the substrates was reported by Paupy et al. by developing wafer-scale detachable monocrystalline germanium nanomembranes for III–V material growth and substrate reuse, significantly

• cleaning conditions. Dihydrolevoglucosenone (Cyrene) has recently emerged as a greener alternative within this class, with solubility parameters and surface tension similar to those of NMP and DMF, but a lower toxicity profile [30][31]. Overall, these observations suggest that the solvent classes effective

Glycerol photoelectrochemical oxidation reaction at carbon nitrides/BiVO₄ materials

• Charles Garcia da Cunha,
• Isabelle M. D. Gonzaga,
• Cristian Hessel,
• Izadora F. Reis,
• Ivo F. Teixeira,
• Lucia H. Mascaro and
• Elton Sitta

Beilstein J. Nanotechnol. 2026, 17, 806–817, doi:10.3762/bjnano.17.57

• been pointed out as a promising material, as it presents high chemical stability and a wide absorption range of solar radiation [8][9][10]. To overcome the limitations associated with the low electrical conductivity of BiVO4, sluggish surface kinetics and the recombination of electron–hole pairs [11

• oxidation depicted higher photocurrents and provided a protective effect against photocorrosion. The photoelectrochemical activity and selectivity of glycerol oxidation on BiVO4 are influenced by several factors, including pH [26], electrolyte cation and anion [28], BiVO4 surface crystallography orientation

• (ethylene glycol) (PEG-300, Sigma-Aldrich, ACS reagent, 99.99%) for 30 min in an ultrasound bath (Soni-tech ultrasonic cleaner). Subsequently, 60 µL of a freshly sonicated suspension was drop-cast onto a 1 × 1 cm FTO (Sigma-Aldrich, surface resistivity ≈7 Ω/sq) substrate cleaned/pre-treated according to the

Tuning the electronic properties of defect-rich MoS₂

• Eric Juriatti,
• Martina Binninger,
• Carolin Schüle,
• Maren Zirwick,
• Katarina Margetic,
• Erika Giangrisostomi,
• Marcus Scheele and
• Heiko Peisert

Beilstein J. Nanotechnol. 2026, 17, 796–805, doi:10.3762/bjnano.17.56

• structural defects significantly affect the electronic properties of the material. The present study utilizes angle-resolved photoelectron spectroscopy (ARPES) and surface-sensitive core-level spectroscopy (SXPS, XAS) with synchrotron radiation to investigate the interfaces between defect-rich MoS2 and

• Fermi energy in such defect-rich MoS2 can be tuned by the subsequent deposition of CoPcF16, which is verified by a shift in Fermi level for the Ne sputtered surface, under complex charge rearrangements including a charge transfer from all the substrates towards the cobalt atom of the organic molecule

• spectroscopy (XAS), and angle-resolved photoelectron spectroscopy (ARPES) are powerful techniques for studying interfacial electronic structures with different surface sensitivities, the orientation of molecules in a heterostructure, and the band structure in proximity to the Fermi level. Using these

Restorative potential of laser-synthesized silver nanoparticles with Salvia officinalis for periodontal disease treatment: an in vitro study

• Jelena Filipović Tričković,
• Sanja Živković,
• Bojana Ilić,
• Miloš Tošić,
• Jelena Marinković,
• Ana Valenta Šobot and
• Miloš Momčilović

Beilstein J. Nanotechnol. 2026, 17, 781–795, doi:10.3762/bjnano.17.55

• a 150 ps pulse duration and a repetition rate of 10 Hz. Two different pulse energies (2 and 6 mJ), corresponding to fluences of 0.04 and 0.12 J·cm−2 and a laser-irradiated area of approximately 0.05 cm2 on the target surface, were used with or without sage extract to evaluate the influence of laser

• fresh surface irradiation could be achieved. Four AgNPs samples were obtained, namely, SageAgNPs2mJ and SageAgNPs6mJ, which were synthesized in the presence of sage extract (100 µL), as well as dwAgNPs2mJ and dwAgNPs6mJ, which were prepared in 8 mL of deionized water (18 MΩ·cm) under the same laser

• AgNPs depends on their concentration but also on their size. Smaller nanoparticles exhibit a higher surface-area-to-volume ratio, which enhances their reactivity and interaction with bacterial cells. Moreover, reduced particle size enables more efficient penetration of the bacterial cell membrane

Substrate-dependent pore formation in molybdenum disulfide monolayers under ion irradiation

• Yossarian Liebsch,
• Umair Javed,
• Lucia Skopinski,
• Leon Daniel,
• Franziska Appel,
• Radia Rahali,
• Clara Grygiel,
• Henning Lebius,
• Carolin Frank,
• Lars Breuer,
• Leon Kirsch,
• Frieder Koch,
• Jani Kotakoski and
• Marika Schleberger

Beilstein J. Nanotechnol. 2026, 17, 769–780, doi:10.3762/bjnano.17.54

• Abstract Ion irradiation is a versatile tool for nanostructuring surfaces, yet the roles of energy deposition and dissipation at the surface and in ultrathin materials remain poorly understood. In this study, we investigate nanopore formation in monolayer MoS2 on different substrates under irradiation of

• highly charged ions (HCIs) and swift heavy ions (SHIs), remains less complete. The emergence of 2D materials has intensified the interest in ion–surface interactions [9][10][11][12][13]. Owing to their atomic thickness, 2D materials combine outstanding mechanical properties with promising (opto

• surface [36][37], whereas SHIs deposit energy continuously along their trajectory via electronic stopping Se. Despite these differences, both ion types couple primarily to the electronic system of the target such that subsequent energy transfer to the lattice is governed by electron–phonon coupling [38

Interface-engineered Caco-2 cell culture on a collagen-coated liquid–liquid interface in a microfluidic device

• Satoru Kuriu and
• Soo Hyeon Kim

Beilstein J. Nanotechnol. 2026, 17, 760–768, doi:10.3762/bjnano.17.53

• channel widths of 5 and 10 mm, the Bond number increased by one to two orders of magnitude. As the Bond number increases, gravitational forces increasingly dominate over interfacial tension. Thus, for channel widths of 5 and 10 mm, the gravitational effect on the aqueous layer exceeds that of surface

Tailoring Ag–Pt nanoalloys through solid-state dewetting: structural and optical insights

• Marcin Łapiński,
• Piotr Okoczuk,
• Blaž Grobiša,
• Ewa Pawlikowska,
• Amelia Rozwadowska,
• Wojciech Sadowski and
• Barbara Kościelska

Beilstein J. Nanotechnol. 2026, 17, 748–759, doi:10.3762/bjnano.17.52

• -electron contribution of platinum, which suppresses plasmonic oscillations. The obtained results demonstrate that thermally activated dewetting enables the synthesis of homogeneous Ag–Pt nanoalloys at the nanoscale, both in volume and on the surface of nanostructures, overcoming miscibility limitations of

• physical and chemical properties. This phenomenon arises due to their exceptionally high surface area relative to the number of atoms in their volume, as well as the influence of quantum effects [1][2]. Notably, nanoalloys facilitate the formation of unique phases and systems that are often unattainable in

• film. The disintegration mechanism is driven by atomic diffusion, and the tendency of the system is to reduce the surface energy through the formation of isolated islands [17][18][19][20]. This process is governed by the pursuit of balance between the energy needed to create a new surface (surface

Oxidative atmosphere-driven formation of single-phase spinel CuRh₂O₄ nanofibers for alkaline water oxidation

• Namhee Kim,
• Sumin Ko,
• Sohyeon Choi,
• Seoyoon Jang,
• Myung Hwa Kim and
• Dasol Jin

Beilstein J. Nanotechnol. 2026, 17, 737–743, doi:10.3762/bjnano.17.50

• attention due to their structural robustness and compositional tunability [2]. The spinel framework accommodates diverse metal cations with flexible site occupancy, enabling rational modulation of electronic structure and surface adsorption energetics of key OER intermediates [3], thereby offering a

• oxygen-atmosphere engineering during annealing is critical for suppressing undesired phase segregation and achieving phase-pure CuRh2O4 nanofibers. Angle-resolved X-ray photoelectron spectroscopy (AR-XPS) was performed to clarify the surface chemical states of Cu and Rh in Cu–Rh bimetallic oxides

• synthesized under different O2 concentrations. The Cu 2p spectra in Figure 3a exhibit distinct Cu 2p3/2 (ca. 935 eV) and Cu 2p1/2 (ca. 952 eV) peaks characteristic of oxidized Cu species, accompanied by shake-up satellite features, indicating the predominance of Cu2+ on the surface [12][13]. Meanwhile, the Rh

Environmental applications of silver nanoparticles: state-of-the-art review and emerging trends

• Soni Prajapati,
• Akash Kumar and
• Ranjana Singh

Beilstein J. Nanotechnol. 2026, 17, 697–736, doi:10.3762/bjnano.17.49

• environmental monitoring and remediation. For example, the optical properties of AgNPs are primarily governed by localised surface plasmon resonance (LSPR ), which occurs in the 380–450 nm region and depends on the nanoparticles’ size and shape. The unique optical properties of nanosilver were utilised to

• develop LSPR-based nanosensors that detect different metal ions [7]. A surface coating of ʟ-carnosine on nanosilver enables size tuning and the detection of metal ions such as As3+, Cr3+, Cd2+, and Pb2+, while cetyltrimethylammonium bromide (CTAB) coating provides selectivity against Hg2+ and Cu2+ [8][9

• pseudo-first-order reaction kinetics [25]. The addition of AgNPs to a matrix may improve their efficiency in removing various contaminants via adsorption mechanisms, which can be ionic or covalent, depending on the nanocomposite surface chemistry [26]. In a study, Ag-decorated reduced graphene oxide was

Molecular engineering of individual dye-based nanoparticle photostability for ultrabright two-photon fluorescence

• Eleonore Kurek,
• Sasha Cooper,
• Alexandre Clausolles,
• Karen Perronet,
• Jonathan Daniel,
• Mireille Blanchard-Desce and
• François Marquier

Beilstein J. Nanotechnol. 2026, 17, 688–696, doi:10.3762/bjnano.17.48

• dFONs (including their colloidal stability and surface properties) can be precisely tuned through molecular engineering of specific dye building blocks [1]. dFONs have demonstrated significant potential in bioimaging applications. They have been used as biosensors for various ions [4] and thiols [5], as

• higher surface-to-volume ratios and increased exposure of dye molecules to environmental interactions. We previously demonstrated a counterintuitive result: 14 nm NIR-emitting dFONs (fluorescence quantum yield Φ ≈ 0.01) were ten times more photostable in SPT than larger 43 nm green-emitting dFONs (Φ

Protein-based custom-designed molecular nanotraps for biomedical applications

• Devid Maniglio,
• Alice Marinangeli and
• Alessandra Maria Bossi

Beilstein J. Nanotechnol. 2026, 17, 683–687, doi:10.3762/bjnano.17.47

• ). The whole process occurred in an aqueous environment, providing sustainable conditions. The surface response method [20][21] enabled the modeling of the optimal conditions for the synthesis of uniform bioMIPs, yielding nanoparticulates with a low polydispersity (PDI < 0.3). Investigations to elucidate

Decontamination from water pollutants and pathogens by electrospun nanofibers doped with heavy-atom-free borafluorene-BODIPY photosensitizers

• Angelika Zaszczyńska,
• Paulina H. Marek-Urban,
• Karolina Wrochna,
• Agnieszka E. Kuklewska,
• Kacper Kręgielewski,
• Marta Grodzik,
• Dawid R. Natkowski,
• Jolanta Mierzejewska,
• Ewa Iwanek,
• Agata Blacha-Grzechnik,
• Paweł Sajkiewicz and
• Krzysztof Durka

Beilstein J. Nanotechnol. 2026, 17, 668–682, doi:10.3762/bjnano.17.46

• platform and processing method giving materials with large surface areas, good mechanical properties, and high porosity, enabling oxygen diffusion, light penetration, and efficient ROS production. Accordingly, we used electrospinning, a relatively simple and cheap technique with the perspective for large

• ® software and embedded algorithms. The components of the high-resolution spectra were represented with Gaussian (70%) and Lorentzian (30%) lines, while the background was represented with Shirley’s function. Water contact angle measurements and surface free energy determination The wettability of all

• samples was assessed using a Data Physics OCA 15EC contact angle goniometer (Filderstadt, Germany). A 2 µL droplet of liquid was placed on the scaffold surface, and the contact angle (CA) was measured after 3 s at a temperature of 21 °C. The Owens–Wendt method was used to calculate the components of the

afspm: A framework for manufacturer-agnostic automation in scanning probe microscopy

• Nicholas J. Sullivan,
• Julio J. Valdés,
• Kirk H. Bevan and
• Peter Grutter

Beilstein J. Nanotechnol. 2026, 17, 653–667, doi:10.3762/bjnano.17.45

• above a surface of interest while measuring one or more properties. This process allows for atomic-level imaging of properties, spectroscopic analysis, and even manipulation of a sample toward atomic-scale manufacturing [1]. However, a number of factors limit higher throughput of these techniques. First

• , preparing, running, and analyzing such experiments requires significant domain knowledge and expertise. Dozens of works over the past decade have investigated SPM automation. Some have shown probe tip conditioning to ensure proper surface characterization and/or manipulation [2][3][4]. Others have

• classified surface structure, detecting atoms [5], molecules [6], or defects of interest [7][8]. Even the design of experiments has been researched, using statistics to drive decisions during the experiment [9][10][11][12]. Active learning, where a machine learning algorithm’s internal model is updated

Cellulose as a photocatalyst support material: extraction, structural features, and environmental applications

• Yee Teng Lim,
• Nur Farhana Jaafar,
• Azizul Hakim Lahuri and
• Endang Tri Wahyuni

Beilstein J. Nanotechnol. 2026, 17, 635–652, doi:10.3762/bjnano.17.44

• for cellulose extraction were also explored such as acid hydrolysis, enzymatic hydrolysis, oxidation, and mechanical or solvent-based techniques. Besides that, this review highlights the role of cellulose in photocatalytic applications, where its high surface area, structural porosity, and abundance

• . Cellulose-based nanostructured photocatalyst hybrids have gained particular attention in recent years, and the number of studies in this area continues to rise steadily. CNCs possess several advantageous properties, including distinctive optical features, high stability, large surface area, and excellent

• crystallinity, excellent elasticity, and mechanical strength, with fibers ranging from 200 to 3000 nm long and 10–75 nm wide [23]. Extraction at the nanoscale not only reduces structural defects within cellulose’s hierarchy but also introduces new characteristics such as increased surface area, thereby

Two-step laser synthesis of Ag@TiO₂ nanomaterials for the photocatalytic degradation of rhodamine B

• Marija Kovačević,
• Miloš Tošić,
• Rafaela Radičić,
• Vladimir Rajić,
• Nikša Krstulović,
• Miloš Momčilović and
• Sanja Živković

Beilstein J. Nanotechnol. 2026, 17, 622–634, doi:10.3762/bjnano.17.43

• numerous modification strategies. Silver-modified titanium dioxide (Ag@TiO2) nanoparticles have gained significant attention as advanced photocatalysts for the degradation of organic pollutants, particularly under visible-light irradiation. The incorporation of silver introduces localized surface plasmon

• the morphology, composition, and crystallinity of the resulting nanostructures with high precision. The absence of organic contaminants or residual reagents maximizes the catalytic surface area, while the presence of silver can influence the optical response of TiO2 through plasmon-related effects

• nanoparticle formation, leading to improved control over nanoparticle structure and photocatalytic performance. Results and Discussion SEM analysis The surface morphology of PLD-prepared samples was analyzed using SEM-EDS (Figure 2 and Figure 3). SEM images of the sample surface after deposition of silver on

Recent progress in enhancing built-in electric fields of perovskite solar cells via junction engineering

• Tong Xiao and
• Ke Xu

Beilstein J. Nanotechnol. 2026, 17, 602–621, doi:10.3762/bjnano.17.42

• groundwork for the present review. Homojunctions focus on constructing continuous band bending and Fermi level gradients within the same material system using methods such as doping, surface reconstruction, or orientation induction, thereby smoothly extending the BEF from the interface into the bulk. Their

• [19]. The resulting BEFs, extending across both bulk and surface regions, facilitate the efficient separation of photogenerated carriers and promote their directional transport to the electrodes. Furthermore, optimized interfacial energy-level alignment enhances carrier extraction and suppresses

• distortions, create defects, and promote ion migration. To address these challenges, recent research has focused on precisely tuning the local potential via surface or near-surface doping and functionalization while preserving lattice continuity. Current efforts are also directed toward extending these

Towards targeted drugs and next generation of nanomedicines

• Anna Salvati,
• Silvia Giordani and
• Wolfgang J. Parak

Beilstein J. Nanotechnol. 2026, 17, 598–601, doi:10.3762/bjnano.17.41

• affect nanoparticle distribution and reach the target organ [24][27]. Endogenous targeting refers to the capacity of targeting acquired by nanomedicines after administration, upon adsorption on their surface of specific endogenous biomolecules. In fact, while nanomedicines are usually modified to prevent

• first lipid nanoparticle approved in the clinics for RNA delivery (in this case short interfering RNA). It was reported that this nanomedicine reaches the hepatocytes because of the adsorption of apolipoprotein E on its surface once administered, driving accumulation in the liver and promoting

• interaction with the low density lipopoprotein receptor (LDLR) on the hepatocytes [29]. Other examples of nanomedicines exploiting endogenous targeting are the so-called selective organ-targeting (SORT) lipid nanoparticles, which adsorb different corona proteins on their surface depending on their charge

Probing tribological evolution in atomically thin MoS₂ at different scales

• Xingzhong Zeng and
• Miao Zhang

Beilstein J. Nanotechnol. 2026, 17, 586–597, doi:10.3762/bjnano.17.40

• mode using silicon probes (PPP-LFMR, Nanosensors) with a normal spring constant of 0.2 N·m−1 and a tip radius of ≈8 nm. Raman spectra were collected using a 533 nm laser (0.5 mW power) to avoid sample damage. The surface roughness (Ra) values of MoS2 were measured from the corresponding topographic

• about 23 cm−1 (Figure 1d) indicates the corresponding MoS2 area is composed of 3–4 layers. Combined with topographic data, the two regions in Figure 1a were identified as 1L and 4L, respectively. Surface roughness (Ra) measurements (within an area of 1 μm × 1 μm) showed that both 1L and 4L MoS2 reduce

Impacts of annealing on structural and photophysical properties of zinc phthalocyanine adsorbed on graphene

• Gautier Creutzer,
• Quentin Fernez,
• Nataliya Kalashnyk,
• Zohreh Safarzadeh,
• Lydia Sosa Vargas,
• Céline Fiorini-Debuisschert,
• Nicolas Fabre and
• Fabrice Charra

Beilstein J. Nanotechnol. 2026, 17, 576–585, doi:10.3762/bjnano.17.39

• characteristic of a ZnPc response [43]. However, the highest energy peak is strongly shifted from its value of 1506 cm−1 in the bulk to 1543 cm−1 in this assembly. The same shift has been reported for the ZnPc embedded inside carbon nanotubes or adsorbed on their surface [44]. This is considered as a signature

• of π-stacking of the Pc conjugated core on the nanotube surface and its observation here is consistent with an adsorption of ZnPc on graphene, the molecule lying flat on the surface. The frequencies of these three peaks are similar before and after annealing (1543, 1472, and 1374 cm−1), within our

Laser–material interactions in liquids for the synthesis of nanomaterials: current status and perspectives

• Carlos Doñate Buendia,
• Bilal Gökce and
• Leonid V. Zhigilei

Beilstein J. Nanotechnol. 2026, 17, 571–575, doi:10.3762/bjnano.17.38

• nanoparticle generation in picosecond laser ablation in liquids [40], the elucidation of processes responsible for the formation of periodic surface structures on Cr targets irradiated by femtosecond pulses in water [41], and the integration of X-ray probing with simulations to study the transition from

• , functional applications often require incorporation of additives for size control [44], enhanced colloidal stability [45], or specific surface functionalization [46]. For example, the use of scavengers to capture reactive species can influence nanoparticle size [47] and increase productivity [48

• ]. Alternatively, employing organic solvents instead of water provides opportunities to produce carbon-encapsulated core−shell nanostructures [49] and enables control over oxidation [50], surface chemistry [51], and transferability between solvents [52]. The versatility of LSPC in terms of materials, solvents, and

Synthesis of Cu–Mo/TiO₂ and Co–Mo/TiO₂ photocatalysts for the efficient degradation of organic pollutants in water

• Ilse Acosta,
• Brenda Zermeño,
• Edgar Moctezuma,
• Luis F. Garay-Rodríguez and
• Isaías Juárez-Ramírez

Beilstein J. Nanotechnol. 2026, 17, 559–570, doi:10.3762/bjnano.17.37

• developed to overcome these limitations, including doping, noble-metal deposition, heterogeneous structures, and surface sensitization. Doping is a widely employed method to generate impurity states in the forbidden region or to reduce the effective bandgap. Doping TiO2 with transition metal ions can adjust

• . Mo doping introduces a donor level below the conduction band, thereby reducing the semiconductor bandgap. As a disadvantage, the addition of Mo can result in the formation of large crystals, affecting the surface area and the ability to adsorb pollutants. In contrast, Cu2+ and Co2+ are transition

• oxidation potential and better surface properties [27]. It is expected that the structural properties of the co-doped materials will promote the photocatalytic oxidation reaction. A decrease in the intensity of the diffraction peaks and the appearance of wider peaks were observed with increasing Cu and Co

Advances in nanotechnology applied to natural products

• Douglas Dourado,
• Fábio Rocha Formiga,
• Éverton do Nascimento Alencar and
• Franceline Reynaud

Beilstein J. Nanotechnol. 2026, 17, 555–558, doi:10.3762/bjnano.17.36

• formulations based on natural products [14][15]. Among lipid-based vesicular nanosystems, liposomes are widely investigated for the delivery of natural products. Liposomes consist primarily of phospholipids (often with cholesterol or others sterols) arranged in one or more bilayers, while additional surface

• nanoplatforms for the delivery of natural products, offering structural stability, tunable release profiles, and controllable surface properties [20]. Polymeric nanoparticles, in particular, can protect bioactive compounds, potentially reduce off-target toxicity, and enhance specific biological responses

Electrochemical determination of ciprofloxacin using a MIL-101/reduced graphene oxide-modified electrode

• Nguyen Quang Man,
• Nguyen Ngoc Nghia,
• Nguyen Vinh Phu,
• Vo Thi Khanh Ly,
• Le Lam Son,
• Pham Khac Lieu,
• Le Thi Hong Phong,
• Nguyen Dinh Luyen and
• Dinh Quang Khieu

Beilstein J. Nanotechnol. 2026, 17, 541–554, doi:10.3762/bjnano.17.35

• potential for miniaturization and field use. The performance of electrochemical sensors heavily relies on the electrode’s surface properties. Recently, metal–organic frameworks (MOFs) have attracted significant interest in electrochemical sensing due to their highly ordered porous structures, very high

• surface areas, tunable pore sizes, and numerous active sites. Among these, MIL-101, a chromium-based MOF, is notable for its large pore volume, excellent chemical stability, and strong ability to adsorb organic molecules [9][10][11]. However, the poor electrical conductivity inherent to MIL-101 limits its

• direct use in electrochemical sensing. To address this limitation, hybridizing MOFs with conductive carbon materials has been extensively studied. Reduced graphene oxide (rGO) is especially appealing due to its high electrical conductivity [12], large specific surface area, mechanical stability [13], and

Probing internal continua and atomic ultrafast charge transfer within size-controlled nanoparticles by post-collision interaction in core-hole clock spectroscopy

• Johannes Lütgert,
• Erika Giangrisostomi,
• Nomi L. A. N. Sorgenfrei and
• Alexander Föhlisch

Beilstein J. Nanotechnol. 2026, 17, 505–514, doi:10.3762/bjnano.17.33

• photoluminescence quantum yield or RedOx chemistry, depend on a complex interplay of local and collective electronic structure aspects [10]. For example, quantum efficiency is strongly influenced by surface structure [11], the fabrication of core–shell and core–multishell architectures [12][13], and the choice of

• surface ligands [14]. In this work, we obtain charge transfer on the atomic scale for size-dependent quantum-confined systems using core-hole clock (CHC) spectroscopy. We further expand the well-established CHC approach by the aspect of detecting the internal continuum states within the size-controlled

• expected to be faster than electron transfer within the shell. This implies that the charge delocalization is faster within those layers of the ZnS shell that are closest to the CdSe core. Limited by the escape depth of the emitted electrons, the CHC approach is highly surface-sensitive. In the thinner QDs

Upcycling agroindustrial waste into graphene oxide supports for gold nanoparticles: toward sustainable nanomaterials

• Juan Marcos Castro-Tapia,
• Selene Acosta,
• Hiram Joazet Ojeda-Galván,
• Elsie Evelyn Araujo-Palomo,
• Edgar Giovanni Villabona-Leal and
• Mildred Quintana

Beilstein J. Nanotechnol. 2026, 17, 489–504, doi:10.3762/bjnano.17.32

• UV–vis, ATR-FTIR, XPS, XRD, and Raman measurements, complemented by TGA and TEM to assess optical properties, surface chemistry, and structural and morphological features. Additionally, gold nanoparticles (AuNPs) were photochemically deposited onto Agro-GO to evaluate its potential for nanotechnology

• -related applications. The results reveal that Agro-GO exhibits tunable oxidation levels, diverse surface functionalities, and morphologies comparable to those of conventional GO; these properties strongly depend on the type of agroindustrial waste precursor used. These findings demonstrate the feasibility

• ; hybrid nanocomposites; plasmonic nanomaterials; surface functionalization; Introduction Graphene oxide (GO), due to its unique physicochemical properties, is widely explored regarding a range of applications, including sensors, water purification, and energy storage and conversion [1][2][3][4][5]. GO is